Hi,
I need some input about what is normal in a FCoE environment in regards to priority flow contol counters.
I see Increase of RxPPP and TxPPP counters on a FCoE end to end enviroment. however we don't see high traffic rates to/from storage array(<1Gbps). Customer have not reported low transfer from storage.
Setup:
CNA hosts - FEX2232 - N5K - EMC-VNX
FCoE end-to-end, No native FibreChannel.
CNA adapters = Emulex.
Is a problem I should look further into or is it normal?
I have read the troubleshooting guide.
http://www.cisco.com/en/US/partner/docs/switches/datacenter/nexus5000/sw/troubleshooting/guide/n5K_ts_fcoe.html
some output:
N5K-2# sh inter priority-flow-control
============================================================
Port Mode Oper(VL bmap) RxPPP TxPPP
============================================================
FEX101-2232 1-8
Ethernet1/1 Auto Off 0 211994
Ethernet1/2 Auto Off 0 0
Ethernet1/3 Auto Off 2891830 0
Ethernet1/4 Auto Off 6269410 0
Ethernet1/5 Auto Off 12109662 0
Ethernet1/6 Auto Off 79534 0
Ethernet1/7 Auto Off 0 0
Ethernet1/8 Auto Off 0 0
FEX102-2232 9-16
Ethernet1/9 Auto Off 0 9994780
Ethernet1/10 Auto Off 0 0
Ethernet1/11 Auto Off 24678 0
Ethernet1/12 Auto Off 0 0
Ethernet1/13 Auto Off 4316 0
Ethernet1/14 Auto Off 136 0
Ethernet1/15 Auto Off 0 0
Ethernet1/16 Auto Off 0 0
!VNX-FCOE-ATTACHED SP_A
Ethernet1/19 Auto On (8) 1888566 10100200
!VNX-FCOE-ATTACHED SP_A
Ethernet1/20 Auto On (8) 10414603 1367098
Ethernet1/23 Auto Off 0 0
Ethernet1/24 Auto Off 0 0
Ethernet1/25 Auto Off 0 0
Ethernet1/26 Auto Off 0 0
Ethernet1/27 Auto Off 0 0
Ethernet1/28 Auto Off 0 0
Ethernet1/30 Auto Off 0 0
Ethernet1/32 Auto On (8) 0 0
Ethernet1/38 Auto Off 0 0
Ethernet1/39 Auto Off 0 0
Ethernet1/40 Auto Off 0 0
Ethernet1/41 Auto On (8) 0 0
Ethernet1/42 Auto On (8) 0 0
Ethernet1/43 Auto On (8) 0 0
Ethernet1/44 Auto On (8) 0 0
!CNA atttached hosts.
Ethernet101/1/1 Auto On (8) 37109 33155
Ethernet101/1/2 Auto On (8) 120 32336
Ethernet101/1/3 Auto On (8) 274 34404
Ethernet101/1/4 Auto On (8) 1924 64754
Ethernet101/1/5 Auto On (8) 144 14684
Ethernet101/1/24 Auto On (8) 4296788 4466
Ethernet101/1/25 Auto On (8) 104520 22
Ethernet101/1/26 Auto On (8) 838 30824
Ethernet101/1/27 Auto On (8) 796 7770
Ethernet101/1/28 Auto On (8) 13749152 1684
Ethernet101/1/29 Auto On (8) 5912918 1276
Ethernet101/1/30 Auto On (8) 3296026 2292
Ethernet101/1/31 Auto On (8) 0 80
Ethernet101/1/32 Auto On (8) 0 0
Ethernet102/1/1 Auto On (8) 75656 323512
Ethernet102/1/2 Auto On (8) 0 5632
Ethernet102/1/3 Auto On (8) 4278 173828
Ethernet102/1/4 Auto On (8) 0 0
Ethernet102/1/28 Auto On (8) 2872 300046
Ethernet102/1/29 Auto On (8) 28216 11808124
Ethernet102/1/30 Auto On (8) 4792 441340
Ethernet102/1/31 Auto On (8) 0 0
Ethernet102/1/32 Auto On (8) 1040 201214
Ethernet1/19 Auto On (8) 1888566 10100200
Ethernet1/20 Auto On (8) 10414603 1367098
Just a one of the servers
GDC-CORE-SW04# sh inter e101/1/29 priority-flow-control
============================================================
Port Mode Oper(VL bmap) RxPPP TxPPP
============================================================
Ethernet101/1/29 Auto On (8) 5912932 1276
GDC-CORE-SW04# sh inter e101/1/29 | in pause
0 Rx pause
0 Tx pause
GDC-CORE-SW04# sh inter e101/1/29 priority-flow-control
============================================================
Port Mode Oper(VL bmap) RxPPP TxPPP
============================================================
Ethernet101/1/29 Auto On (8) 5913378 1276
GDC-CORE-SW04#
GDC-CORE-SW04# sh inter e101/1/29 | in pause
0 Rx pause
0 Tx pause
VNX
GDC-CORE-SW04# sh inter priority-flow-control | in Ethernet1/19 ne 1
Ethernet1/19 Auto On (8) 1889064 10100536
Ethernet1/20 Auto On (8) 10414603 1367164
GDC-CORE-SW04# sh inter e1/19 | in "input rate"
30 seconds input rate 133346744 bits/sec, 16668343 bytes/sec, 10762 packets/sec
input rate 96.22 Mbps, 8.31 Kpps; output rate 118.68 Mbps, 8.83 Kpps
GDC-CORE-SW04# sh inter e1/20 | in "input rate"
30 seconds input rate 36024752 bits/sec, 4503094 bytes/sec, 2342 packets/sec
input rate 33.96 Mbps, 2.09 Kpps; output rate 24.95 Mbps, 1.50 Kpps
